Ingredient dictionary

Ammonium Polyacryloyldimethyl Taurate

A synthetic polymer that thickens water-based products and helps keep their texture smooth, even and stable. It is on the label of 22 products in our library. Checked against our library November 6, 2026.

What Ammonium Polyacryloyldimethyl Taurate does

Thickens water-based formulas
Gives a smooth, silky feel
Helps oil and water stay blended

This ingredient is a synthetic polymer, a long chain of repeating units made in a lab. Each unit is built from a sulfonic acid building block. The chain is neutralized with ammonia, which is where the word ammonium in the name comes from. Once it is mixed into water, the chains swell and form a soft, gel-like network.

Formulators use it because it adds body without a heavy or greasy feel. It helps lotions, serums and gels keep a smooth, consistent texture, and it helps keep oil-based and water-based parts from separating. It is known for holding up well alongside many other ingredients. On the skin, it usually feels smooth and light rather than tacky.

Good for

Suits lotions, serums and gels that need a light, smooth texture and a steady, even finish.

Frequently asked questions

Is Ammonium Polyacryloyldimethyl Taurate safe for sensitive skin?

It is generally well tolerated and turns up in many lotions and serums. It is a thickener, not an active treatment, so it adds texture rather than targeting a skin concern. If your skin reacts easily, patch test any new product first.

Does Ammonium Polyacryloyldimethyl Taurate exfoliate the skin?

No. It is not an exfoliant. In exfoliating products it mainly gives the formula body and a smooth texture, while other ingredients do the exfoliating work. Check the full ingredient list to see which ingredients are doing that job.